Association of increased urine brain derived neurotrophic factor with lower urinary tract symptoms in men with benign prostatic hyperplasia.

Urinary brain-derived neurotrophic factor (BDNF), an ubiquitous neurotrophin, was found to rise in patients with benign prostatic hyperplasia (BPH). We hypothesized that the urinary level of BDNF could be a potential biomarker for lower urinary tract symptoms (LUTS) in patients with BPH. Totally, 76 patients with BPH-caused LUTS and 32 male control subjects without BPH were enrolled.